Introduction - If you have any usage issues, please Google them yourself
ios a performance management system, the use of the property list, the object file archiving solution method to build a simple performance management system specific elements: the use of the table view and object files archived reconciliation methods to achieve increased student achievement, delete, search and find. 2, the use CoreData framework to build a simple performance management system specific elements: the use of the table view and CoreData framework to achieve student achievement to add, delete, check and find. 3, for the performance management system was added fault tolerance. Specific content: text box when the data input error, a warning box that prompts you to reenter content. For example: When you enter the letters and incorrect results in the achievement to be able to judge the input box and pop-up warning view.